Carton sealer



H. J. HAGIST CARTON SEALER Nov. 12, 1929.

I IN VEN TOR.

HEKHIIN JhHs/sz 2 Sheets-Sheet v INVENTOR HER/117A! .j/mq/srr BY k aPatented Nov. 12, 1929 UNITED STAT- HE MAN HAGIsT, on BEECH enovn,IND'iA NA, ASSIGNOR T0 INTERNATIONAL,

PRINTING COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION cAn'ronApplication filed June 25,

1 This invention relates to a box or carton sealing machine of thegeneral character disclosed in Patents Nos. 1,424,018,3uly 25, 1922,and'1,555,117, Sept. 29, 1925, to George K. Henderson. I

The chief object of this invention is to provide a device which isadapted to automatically maintain a predetermined pressure forrsealingpurposes until thesealed article is to be removed from the'machine andan. unsealed article substituted therefor for subsequent sealing. y

The present 'nvention is a directed to'a' double-end, oneor'two-piecebox sealingma-' chine and the chief feature ofthe invention consists inthe specific arrangement of the several parts for cooperation to applyuniform pressure at both and opposite ends of a one-piece carton or oneof the pieces of the two-piece carton to "be sealed.

The full nature of the invention will be more clearly understood fromthe accompa} nyingdrawingsand the following descriptions and claims: w y

In the drawings Fig. 1 is a top plan view of a multiple unit machinewith one-half of two-piece cartons mounted in each sealing unit exceptthat at the loading'station, which unitiricludes a spacing form. Fig; 2'is a vertical sectional view taken on the line 22 of Fig. 1, and in thedirectionof the arrows, with one-half of v the two-piece boxshowndottedl' Fig. 3is a view'similar to Fig." 1 of the sameor a similarmachine adapted for double-end sealing of one-piece cartons, that at theloading station being omitted; Fig. 4 is a side elevation of a unit withcarton mounted thereon, I

In the drawings 10 indicates a suitable standard having a spindle 1'1mounted therein and the standard 10 includes a plurality of projectingarms 12, each ofwhich is adapted to support a radially-projectlng base13. Each base 13 is provided with a plurality of elongated slots 14 nearits outer end and an angle member 15 having a portion at" right anglesto the' plane of the base is 'ad ustably but rigidly secured to saldbase thru the bolts 16-and the wing nuts'17, said bolts extending thrusaid slots. The transverse SEALER 1928. Serial no. 288,157;

portion of the angle member 15 supports a transverse clamping member 18provided I witha cushion surface 19 as shown.

The base member 13 is suitablyapertured as at 20 andbolts 21 passtherethru andl'thru nuts 22 andsecure'a bracket guide 23 to the base.Said guide has a squared opening 24 extending therethru and parallel tothe base. An oil hole 25 may be'provided if desired. An elongatedsquarebar 26 is slidably supported in'the opening 24' and each bar atits I inner end supports a bolt 27 by a nut 28am said holtconstitutes aswivel or pivotal support for a cam roller-29. Glam roller 29 is adaptedto beengaged by the cam me'mber30 carried by collar 31 rigidly securedtothe spindle 11 as at 32.

A clamping member 33, similar to member 18, is supported by the oppositeend ofthe bar 26 as at 343 V Interposed between the member 33 and theguiding support 23lis a coil spring 36 which, in the absence of the cam,30, is adapted to cause relative movement of the; two clamping members18 and 33 toward each other, separating relative movement between saidclamping members being'obtained by the roller 29 enga'gingthe cam 30,whereupon spring 36- is compressed and clamping plate 7 33 retractedtoward the center of the machine: Clamping member 33' is "provided witha cushion face 37 similar tothe cushion surface 19. a

From the foregoing, will be noted that" the device is adapted tosimultaneously seal opposite ends of a carton, the-opposite ends ofwhich are to be sealed andthat the ma chine is so arranged. that thesequence is as follows:

At the loading station spring 36 iscompressed and theelamping member 33re-" tracted about one and one-half inches or more from its clampingposition, this being the difference between the high and low" points-onthe cam 30 and then, after the carton has been placedbetween-theclampingmen i bers 33 and 18, while clamping plate 33 is held retracted,the"base is rev0lved,frelieving the roller 29' from the 'cam- 30 andreleasing the plate 33 to spring 36, whereupon both ends.

of the carton are simultaneously sealed with 49 that secures he guidemember 46 to the and his tiltable ck,'-when register-- equal pressureenerted by spring 36 and held thereby until the base 13 again approachesthe loading station, whereupon the cam engages the roller 29. andcompresses spring 36.

The carton can then be removed in its completely sealed state and a newcarton substi;

t nted therefor and for subsequent sealing. Q

The devicevis adjustable to carton si z e h ough the adju abl mounting fangle member '15, Z The Clamping pressure available is onlythatjinherent' in spring 36 and the efiectiveness thereof is inverselyas the elon gation thereof. The greater the elongation of spring 36 thesmaller'willbe the effective clamping force and the lesser theelongation E'QI'IILlttBClZtllB greaterwill be the clamping forcedfo-rsealing. The elongation desired and; hence thesealing pressure isdetermined by adjusting the position of clamping mem-' befiliavithregard to the length of carton to be sealed, a smaller carton requiringthe positioning of clamping member 1 8 closer to the centralaxis of themachine to obtain the'same spring elongation and therefore the sameclamping pressure.

To insure the universalscharacter of the machine means are providedwhereby the. machine is adapted to simultaneously seal I the oppositeends oftone wpiece of a two-piece 7 H320 t box. :Suchapieee'ofatwo-piece box is indicated :by the :dottedlines in' Fig. 2. t It will bebox. This is permissible by the-adjustment possible thru the arrangementof several parts previously d.escr ibed.-- Each half-ofthe two-piece boxis formed'and sealed uponan understood of course that each alternateclamping umt, such as previously described,

' ic'ana-cfcommodate 0;; seal a cover, and each intermediate unit canseal a bottom of a twopiece boxfand, after being sealed, the two piecescan'ibetelescorped vto form a completed 7 individual form; This formincludes a recrelation, and also supported by the v the-stop members 45.

tang'ular frame. having sides 40 and ends 41, the latter recessed as at42 for finger engage- 2111.43 from the form. V

The two end members 41 are herein shown projecting below the level ofthe side members 40, see Fig. 2, connecting the end mem- V ment.torremove the ha lfof the box indicated bars 41 Beneath the plane .ofsaid side 1nemin spaced bers are two parallel'members 44 same areIntermediate said parallel members 44', step members 45 are adapted tobe engaged :by an elongated block or guide member 46 carried by arm 1-3and time the :is' .sli'dably mounted upon the m, that i01slaight'srelative sliding movement; .Til ahle 1ock'4e8 iscarl'ied by thebolt ba' ehl ing w he gui e membeneermi the/later em val from the ba e rlater app i ati n but, when ngula ly posi i n d relat vethere q, locksthe form to the ba e.-

A pair of springs 50 provides an additional yielding connection betweenthe form and 4 the base 13. As shown by the dotted lines,

in Figs. 1 and 2 and indicated bythe numeral 43, the half-carton edgesare positioned vertically relative to the base 11 on andenveloping theform. After the si es are vertically positioned relative thereto, themachine is rotated and the form with the cartonblank. is moved into.engagement'wilth'the pad 19* and when the roller 29 leaves the cam 30in the rotation of the base 13- pad 37 engages the form and cartonpositioned thereon and maintains the sidesin clamped relation forsealing the same. Each form may be of'the desired size toaccommodate-thetboir toloe sealed.

From (the foregoing, it will lee noted the present invention is adaptedto maintain a predetermined pressure uponopposite ends of a cartonconstructlon for seal-ing the same,

and this predetermined pressure [can be ad: a j-usted to diflerenitover-all lengths of cars tons, and the device is arranged to accommodateany widthof carton 'upto a predetermined width, and, 'morec-partieular'lygrthe device can seal single-unit, double-end tons.or'half units of a tW-OspieceIdoubIe-end carton. Of-oourse the deviceis also'adafpted to seal a'single-en'd canton ii' such type-of sealingis required. I

In Figs. 3 and 4; the same mama is: ill-us;

trated but the forms areremoved and the machine is used for tubular-box,single;

carton, double-end'sealing.

a The clamping plate at the loading is'shown fully retracted ready fo rtherecepw tion of a manually-folded tubular box toner-11d clamping andsealing. p .The invention claimed 1s;

l. A universal cartonsealerofthe charaeel ter' described, comprising arotatable base construction, a stationary cam associated t r it p u ityo pai sef-eep sed clamping members, each pair being arranged forrelative movement toward and-away from each .other Substantia-llyradialto the axis rotation of said base, the outer of each opposed'pair ofclamping members being e e s i a and theeu e m t at each of saidclamping me ers f adiustingt same whereby the nec Clamping sure and t eesired Dverall clampi lgng'th p v W 3. A- devicje as erizeid y an el g ebars debly and rockably mounted, and means carried by the basesupporting said bar and thru which the bar extends, said meansconstituting a spring seat for said spring.

4. A device as defined by claim 1, characterized b an elongated barslidably and non-rockab y mounted, and means carried by the basesupporting said bar and thru which the bar extends, said meansconstituting a spring seat for said spring, said spring being coiledabout said bar and said bar carrying at its inner end said cam follower.

5. A carton-sealing machine including a machine-supported form, a baseportion, means slidably supporting said form upon said base, a pair ofclamping members separated by said form and normally constrained towardeach other, and cam means for removing such constraint for loading andunload ing purposes.

6. A device as defined by claim 5, characterized by the addition ofyielding means interposed between said base and said form forconstraining thelatter to predetermined position. v

7. A device as defined by claim 5, characterized by the addition ofmeans for detachably locking said form to said base.

8. A device as defined by claim 5, characterized by the addition ofmeans for detachably locking said form to said base, and additionalmeans interposed between said form and said base for normallyconstraining the form toward predetermined position adjacent one of theclamping members.

9. A device as defined by claim 5, characterized by one of saidclampingmembers having an adjustable connection with said base for accommodatingdifferent length forms.

In witness whereof, I have hereunto aflixed my signature.

HERMAN J. HAGIST.

